Nut-lock.



B. LACKEY.

NUT LOCK.

APPLICATION FILED APR. Is, 1912.

Patentd Nov. 4, 1913.

me/who@ coLuMBIA PLANQGRAPH co., wAsHIN aaaaaa c.

BEN LACKEY, OF MERIDIAN, MISSISSIPPI.

NUT-LOCK.

Specification of Letters Patent.

' Patent-eu Nov. a, isis.

Application filed April 18, 1912. Serial No. 691,598.

To all whom l? may concern Be it known that I, BEN LACKEY, a citizen of the United States, residing at Meridian, in the county of Lauderdale and Stateof Mississippi, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

lily invention relates to improvements in means for locking nuts against movement upon their bolts, and the object of my invention is to provide a device by means of which the nuts may be quickly locked in place and which will at the same time permit the ready unlocking of the nuts when desired. y

i further object of my invention is to 'provide a device which may be employed in locking the nuts upon a plurality of alined bolts and which is therefore especially applicable in the bolting of rail joints. And a still further object of my invention is to provide a pivoted bar which, in adjusted position, extends adjacent the peripheral faces of the nuts to prevent their turning and which .is secured in this position by a key operated lock, the employment of a key preventingaccidental loosening of the device. j

lith these and other objects in view, my invention will be more fully described, Yillustrated in the accompanying drawings, and

then specifically pointed out in the claims which are attached to and form a part of this application.

in the accompanying drawings: Figure 1 is a perspective of a rail joint, showing my improved locking device appliedthereto; Fig. 2 is a side elevation of the same, partally in section to more clearly show the con- L structon of the lock; Fig. 3 is a transverse section taken through the stoppin of the locking device and looking toward the pivotal end of the locking bar thereof. Fig. i

is a detail perspective of one end of the pivoted bar and the lock carried thereby.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

My present invention embodies the application 0f the locking bar 10 to one of the fish plates of a rail joint designated as a whole by the numeral 11. The abutting ends of the rails 12 and 13 are secured end to end by means of fish plates 14 and 15 which bear against the opposite web portions of the rails and have their upper edgesi Shaped t0 conform to the lower face of the head of the rails as shown at 16. These fish plates, at their lower edges, are provided with outwardly directed extensions 17 which bear upon the rail flanges, and base plates 18 are formed integrally with these extensions and engage beneath the flanges. As will be readily seen this manner of constructing the fish plate and base plate in a single piece gives great additional strength to the joint.

The fish plates are provided with a plurality of spaced apart, correspondingly positioned bolt receiving bores and the web portions of the adjacent rail ends are correspondingly bored to receive a plurality of bolts 19 which are passed through both fish plates and the web of the rail and secured by nuts 20 which are turned firmly home against the outer face of the fish plate 14. To prevent disengagement of these nuts fro-m their bolts is the primary object of my invention and i accomplish this by the employment of the bar 10` which is provided at one end with an enlarged, perforated head 21 which is swingingly mounted upon a pin Q2, the inner end of which is passed through the fish plate 14 and secured against disengagement by heading or other preferred means. in operative position, this bar 10 Jextends longitudinally of the fish plate and bears upon or extends just above the upper faces of the nuts and it will therefore be understood that as long as lthe bar is maintained in this position, each and every one of the nuts will be held against turning upon the boits. in order Vto limit the downward swinging of this bar and for another purpose which will be hereinafter explained, I have provided a pin 23, one end of which is secured in the fish plate 14 and the other end ofwhich extends outwardly to engage the locking bar 10 when the latter is swung to position. The upper face of this pin is preferably cut-away to form a seat 24C for the reception of the locking bar and a resultant shoulder 25 to hold the free end of the locking bar against any possible outward movement. The under face of the locking bar, adjacent its free end, is also preferably provided with a transversely extending channel 26 for the reception of the pin 23 when the bar is in lowered position.

As a means for locking the bar in lowered or operative position, I have provided a substantially rectangular shaped casing 27 which is secured against the lower face of the free end of the bar by a pin or rivet 28 at its rear end and a metallic strap 29 at its forward end, this strap passing around the forward end of the easing and the locking bar and securing the two i'mly together. rlhis casing incloses a lock, designated as a whole by the numeral 30 and including the longitudinally movable bolt 31 having a terminal 32 which in the outer position of the bolt engages beneath the pin 23. The movement of the bolt within its casing is limited by means of a pin 38 which extends transversely through the easing and through a suitable transverse slot 34 formed in the lower face of the bolt. A helical spring 35 serves to normally maintain the bolt in extended position, one end of this spring being adapted to engage Vagainst the wall of the casing and its opposite end being adapted to bear against the vertical rear1 tace 36 ot the bolt.

Both of the side walls of the casing arev provided in their upper edges with slots 38 which register with a transversely extending slot 39 formed in the upper face of the bolt 31 when the latter is'in extended position and the locking bar 10 is provided in its lower face with a transversely extending slot 4:0 which is in alinement with the slotsI 38 of the casing. The slot 40, together with the slots 38 form a vkey receivingl openingj into which a key may be inserted to bring@ its ward into engagement with the slot 39 of l the bolt, when a clockwise turning ot' the' key will retract the bolt against the action of the .spring 35 to release the locking lever.

rlhe lower face of the extension32'of the bolt is preferably beveledin such a manner that when the locking bar is swung downr to operative position, this beveled face will,` engage against the pin 23, `causing the bol`t to be forced back until the locking bar is; in place when it will immediately spring out to normal position to engage beneath the pin 23.

From the foregoing description, taken in connection with the drawings, the operation of my improved lock will be readily understood and any further description of the same is therefore unnecessary.

It will of course be understood that the y locking bar and lock casing, While preterably formed of metal, may be made of wood or other material if desired.

Having thus described the invention, what is claimed as new is:

l. The combination with a fish pla-te having a plurality of alined bolt receiving aper` and lock the bar thereto, and key operable means for retracting said bolt.

2. The combination with a fish plate having a plurality of alined bolt receiving apertures, of a bar pivoted at one end to the fish plate and movable into parallel spacedL relation to the line of the apertures, the free end of the bar being cut-,away transversely to provide a seat, a pin extending from the `bar and to pro-vide a terminal shoulder engaging the outer tace of the bar to hold the saine against outward swinging movement, al casing secured to the bar, and a spring pressed normallyfextended bolt movable in the casing and adapted to engage beneath tended position to engage beneath the pin1 fish 'plate in position to engage in said seat 3 when `the lbar is in locking position and hold y the latter against 'further downward movement, rsaid pin being cut-away to receive the the pin to loc'fl; the bar against upward 1 swinging movement.

In testimony whereof I aiiX my signature in presence of two witnesses.

BEN 'LACKEY [L si] Witnesses t,

B. R. ROBINSON, G. W. Moons.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of 'Patents Washington, D. G. 

